Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

What is the probability of a carrier of the recessive allele, Two parents w...

Two parents who are each known to be carriers of an autosomal recessive alleles have four children. None of the children has the recessive condition. What is the probability that o

Atmosphere, Atmosphere is a multilayer blanket of various gases such as N2 ...

Atmosphere is a multilayer blanket of various gases such as N2 (78.80%), O2 (20.95%), Ar(0.93%), CO2 (0.03%), water vapor and some other gases. This envelope extends from earth's c

Define viscosity - function of proteins, Explain Viscosity of proteins ...

Explain Viscosity of proteins Viscosity reflects resistance to flow. The  main  single factor influencing the viscosity  behavior  of protein  fluids  is   the  apparent  diame

Determine the term - origin of life on earth, Based on your reading of the ...

Based on your reading of the article "Origin of Life on Earth" which of the following is a false statement regarding how life developed? A. As proteins are needed for the repli

Pre-embryo - human development, Pre-Embryo - Human Development About t...

Pre-Embryo - Human Development About thirty hours after fertilization the zygote goes through mitosis giving rise to 2 blastomeres. These blastomeres go through further cleava

In how many parts minerals are divided, Classification of Minerals Mine...

Classification of Minerals Minerals can be separated into two main categories, namely, main elements (calcium, potassium, phosphorous, chlorine, sodium, magnesium) and trace el

Explain the term - differential reinforcement, Differential reinforcement ...

Differential reinforcement (Training of incompatible behaviour)- Differential reinforcement of incompatible behaviour (DRI) is used to decrease a frequent behaviour without pun

Explain gum karaya, Gum Karaya Gum karaya (sterculia gum) is the...

Gum Karaya Gum karaya (sterculia gum) is the dried gummy exudate from Sterculia urens Roxburgh and other species of Sterculia (Family: Sterculiaceae) or from Cochlosperm

Plankton - aquatic ecosystem, Plankton - Aquatic Ecosystem This group ...

Plankton - Aquatic Ecosystem This group includes both microscopic plants (phytoplankton) and animals (zooplankton) found in all aquatic ecosystems, except certain swift moving

Hydration control by active pump mechanisms in corneal, How is hydration co...

How is hydration control by active pump mechanisms responsible in the corneal hydration? Hydration Control by Active Pump Mechanisms: a) Na/K ATPase pump, which is more acti

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd